MCX SBR 300BLK FDE 9" 30+1 RMCX-300B-9B-IR-SBR Manufacturer Model Number: RMCX-300B-9B-IR-SBR Manufacturer: SIG SAUER Model: MCX SBR Caliber: 300 AAC Blackout Type: NFA - Short Barrel Rifle Item Type: NFA Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 30 + 1 Finish: FDE IR Cerakote Stock Frame Grips: Collapsible / Folding Stock Flat Dark Earth Magazine Quantity and Description: 1 30 rd. Shipping Weight: 0.0 Feature: Aluminum MLOK Handguard Optic Adjustable Objective: false Optic Reticle Illuminated: false